n unknown compound is insoluble in water. It is dissolved in HCl with a gas formation with an effervescence and gives a precipitate with K2S solution. Which compound is it? SOLUBILITY RULES Solubilities of ionic substances in water: 1) All salts of Na+, K+, NH4+ are soluble in water. 2) All salts of NO3-, CH3COO- are soluble in water. 3) All salts of Cl-, Br-, I- are soluble in water (except Ag+, Pb2+, Hg22+ ) 4) All salts of SO42- are soluble in water ( except Ba2+, Pb2+, Sr2+) SO42- of Ca2+, Ag+, Hg22+ are slightly soluble in water. 5) All salts of CO32-, PO43- are insoluble in water (except Na+, K+, NH4+) 6) All salts of S2- are insoluble in water ( except Na+, K+, NH4+, Ba2+,Ca2+, Mg2+, Sr2+) 7) All salts of O2-, OH- are insoluble in water ( except Na+, K+, NH4+, (Ba2+)) OH- of Ca2+, Sr2+, (Ba2+) are slightly soluble in water OH- of Mg2+ is very very slightly soluble in water a. NiCO3 b. K3PO4 c. Zn3 (PO4) 2 d. MgCO3
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
An unknown compound is insoluble in water. It is dissolved in HCl with a gas formation with an effervescence and gives a precipitate with K2S solution. Which compound is it?
SOLUBILITY RULES
Solubilities of ionic substances in water:
1) All salts of Na+, K+, NH4+ are soluble in water.
2) All salts of NO3-, CH3COO- are soluble in water.
3) All salts of Cl-, Br-, I- are soluble in water (except Ag+, Pb2+, Hg22+ )
4) All salts of SO42- are soluble in water ( except Ba2+, Pb2+, Sr2+)
SO42- of Ca2+, Ag+, Hg22+ are slightly soluble in water.
5) All salts of CO32-, PO43- are insoluble in water (except Na+, K+, NH4+)
6) All salts of S2- are insoluble in water ( except Na+, K+, NH4+, Ba2+,Ca2+, Mg2+, Sr2+)
7) All salts of O2-, OH- are insoluble in water ( except Na+, K+, NH4+, (Ba2+))
OH- of Ca2+, Sr2+, (Ba2+) are slightly soluble in water
OH- of Mg2+ is very very slightly soluble in water
NiCO3
K3PO4
Zn3 (PO4) 2
MgCO3
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